Compatible NM-B321 Laptop Motherboard with A4 CPU for 330-15AST / 320-15AST / 330-17AST (DG425 / DG525 / DG725)

NM-B321 motherboard equipped with an A4 CPU, compatible with 330-15AST, 320-15AST and 330-17AST laptop models. This board fits DG425, DG525 and DG725 chassis/board codes, making it a direct replacement option for systems that require the NM-B321 with A4 processor. Confirm compatibility with your model numbers before installation.